Manual alarm button

Abstract

The invention provides a manual alarm button, which comprises a shell, a sliding cover and a baffle plate, and is characterized in that the sliding cover is arranged on the shell, and the baffle plate is arranged on the sliding cover; a middle disc is arranged on the shell and provided with a microswitch, a sliding ejector head and a limiting protrusion. The sliding top head is arranged adjacent to the microswitch, the sliding top head is arranged on the middle disc in a sliding mode, and the sliding top head is connected with the limiting protrusion through a spring; in a normal working state, the sliding cover abuts against and fixes the baffle plate, the baffle plate abuts against and fixes the sliding ejector head, the spring is compressed, the sliding ejector head extrudes a switch reed of the microswitch, and the microswitch is in a conducting state. The manual alarm button is simple in structure and convenient to disassemble and assemble, and the spring, the sliding ejector head, the glass baffle and the sliding cover are matched with one another to achieve switching between an alarm mode and a reset mode of the manual alarm button.

Description

Technical Field

[0001] The present invention relates to the field of fire fighting technology, in particular to a manual alarm button. Background Art

[0002] In recent years, with the development of advanced technologies such as the Internet of Things and artificial intelligence, smart firefighting has become a trend, enhancing fire prevention and judgment capabilities. Although technology plays an important role, firefighting work cannot rely entirely on intelligent equipment, and human participation is also required. After a person discovers a fire, the device can be notified through the manual alarm button so that the subsequent fire extinguishing linkage process can be quickly implemented. In addition, during the equipment testing phase or daily fire drills, a fire can also be simulated by inserting a key into the manual alarm button. The existing manual alarm button pressing and resetting operations are cumbersome, and the situation is usually more urgent when a fire occurs, which increases the difficulty of operation; and its internal structure is complex, difficult to assemble, and difficult to maintain. Some manual alarms are also used in relatively harsh environments, with water intrusion, causing the circuit board to burn out, resulting in the failure of the manual alarm button.

[0003] In summary, it is necessary to design a manual alarm button to solve the above technical problems.

[0004] The patent document with the publication number CN207909322U discloses a manual alarm button, which solves the technical problems of the cumbersome pressing operation and poor safety performance of the existing manual alarm button. The manual alarm button is provided with a base and a cover body, the rear end of the cover body is fixed to the base by bolts, the cover body includes an upper cover and a lower cover, the upper cover and the lower cover are fixedly docked to form a complete cover body, the upper cover and the lower cover are respectively provided with a clamping column, the cover body is provided with a button matched with the clamping column, the upper end face and the lower end face of the button are respectively provided with a limit groove, the two ends of the limit groove are respectively provided with a first limit block and a second limit block, the clamping column penetrates into the limit groove, a spring is provided between the clamping column and the first limit block, a circuit board is provided on the inner side of the base, a press switch is integrated on the circuit board, the rear end of the button contacts the press switch, a magnetic block is also fixed to the rear end of the button, an electromagnet is provided at a position corresponding to the magnetic block on the base, and the electromagnet is electrically connected to the circuit board; a protective device is provided at the front end of the cover body. However, the patent document still has the defects of complex internal structure, high assembly difficulty and difficult maintenance. Summary of the invention

[0005] In view of the defects in the prior art, an object of the present invention is to provide a manual alarm button.

[0006] A manual alarm button provided according to the present invention comprises: a housing, a sliding cover and a baffle, wherein the sliding cover is arranged on the housing, and the baffle is arranged on the sliding cover;

[0007] The housing is provided with a middle plate, and the middle plate is provided with a micro switch, a sliding head and a limit protrusion;

[0008] The sliding head is arranged adjacent to the micro switch, the sliding head is slidably arranged on the middle plate, and the sliding head is connected to the limiting protrusion via a spring;

[0009] Under normal working condition:

[0010] The sliding cover abuts against and fixes the baffle, the baffle abuts against and fixes the sliding head, the spring is compressed, the sliding head squeezes the switch reed of the micro switch, and the micro switch is in a conducting state.

[0011] Preferably, the baffle can be broken by external force;

[0012] When an alarm is raised:

[0013] The baffle is manually broken to release the abutment and fixation of the sliding head. The sliding head moves on the middle disk through the extension of the spring and no longer squeezes the switch reed of the micro switch. The micro switch is in a non-conducting state.

[0014] Preferably, the baffle is a glass baffle, and the area on the shell corresponding to the baffle is set as a concave surface.

[0015] Preferably, the sliding cover is slidably arranged on the housing;

[0016] The housing is provided with a buckle device, and the buckle device can fix the sliding cover on the housing; the housing is provided with a key hole, and a key can drive the buckle device through the key hole;

[0017] When an alarm is raised:

[0018] The buckle device is driven by inserting a key into the keyhole to release the abutment and fixation of the sliding cover, thereby releasing the abutment and fixation of the sliding cover to the baffle, thereby releasing the abutment and fixation of the baffle to the sliding head;

[0019] The sliding head moves on the middle disk through the extension of the spring, thereby driving the baffle and the sliding cover to move on the housing, and no longer compressing the switch reed of the micro switch, and the micro switch is in a non-conducting state.

[0020] Preferably, when the manual alarm button needs to be readjusted to a normal working state:

[0021] Pushing the sliding cover to slide on the housing so that the baffle abuts against and fixes the sliding head, and the sliding head presses the switch reed of the micro switch to make it in a conducting state;

[0022] Insert the key into the key hole to drive the buckle device to fix the sliding cover.

[0023] Preferably, tracks are provided on both sides of the shell, and the sliding cover is slidably arranged on the shell via the tracks.

[0024] Preferably, the shell and the middle plate are buckled up and down by buckles;

[0025] An inner box and an inner box cover are arranged on the middle tray, and an installation space for installing a printed circuit board is formed between the inner box and the inner box cover;

[0026] The middle plate is provided with a mounting groove for mounting an indicator light, the indicator light is connected to the printed circuit board, and the housing is provided with a through hole for allowing the indicator light to penetrate at a position corresponding to the mounting groove.

[0027] Preferably, a sealing gasket is provided between the inner box and the inner box cover.

[0028] Preferably, the middle plate is provided with a middle plate groove;

[0029] The lower side of the sliding head is slidably connected to the middle plate groove by a clearance fit; a notch structure is arranged on the shell at a position corresponding to the middle plate groove.

[0030] Preferably, the shell is provided with mounting holes.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention has a simple structure and is easy to disassemble and assemble. The spring, sliding head, glass baffle and sliding cover cooperate with each other to realize the switching of the alarm and reset modes of the manual alarm button. The micro switch, sliding head and printed circuit board are all installed in the middle disk. When troubleshooting, only the middle disk needs to be disassembled, and each component is independent. When a fault is found, any component can be replaced separately, which reduces the maintenance cost.

[0033] 2. The present invention is provided with an inner box and a printed circuit board mounting groove, which separates the mechanical and circuit parts and fixes the printed circuit board in the groove of the inner box. Firstly, it is easy to take out. Secondly, the inner box forms a closed space through the gasket and glue to achieve a waterproof effect.

[0034] 3. The present invention is easy to operate and supports reuse. During normal use, the alarm can be activated by pressing the glass baffle. During the test phase, the alarm can be activated by inserting a key into the keyhole. The sliding cover can be reset by pushing it forward to a specified position. After resetting, the alarm can be activated again by using the key. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0036] Figure 1 It is a schematic diagram of the structure decomposition of the manual alarm button of the present invention;

[0037] Figure 2 It is three views of the shell in the present invention;

[0038] Figure 3 The three views of the sliding cover in the present invention;

[0039] Figure 4 It is three views of the sliding head in the present invention.

[0040] As shown in the figure:

[0041] 1. Shell; 2. Sliding cover; 3. Middle plate; 4. Glass baffle; 5. Micro switch; 6. Sliding head; 7. Middle plate groove; 8. Spring; 9. Inner box; 10. Inner box cover; 11. Printed circuit board; 12. Track; 13. Snap device; 14. Keyhole; 15. Installation hole; 16. Sealing gasket; 17. Limiting protrusion; 18. Indicator light; 19. Through hole; 20. Notch structure. DETAILED DESCRIPTION

[0042] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0043] Embodiment 1:

[0044] like Figure 1-4 As shown, this embodiment provides a manual alarm button, including: a shell 1, a sliding cover 2 and a baffle 4, the sliding cover 2 is arranged on the shell 1, and the baffle 4 is arranged on the sliding cover 2; a middle plate 3 is arranged on the shell 1, and the middle plate 3 is provided with a micro switch 5, a sliding head 6 and a limit protrusion 17; the sliding head 6 is arranged adjacent to the micro switch 5, and the sliding head 6 is slidably arranged on the middle plate 3, and the sliding head 6 and the limit protrusion 17 are connected by a spring 8; under normal working conditions: the sliding cover 2 abuts against the fixed baffle 4, the baffle 4 abuts against the fixed sliding head 6, the spring 8 is compressed, the sliding head 6 squeezes the switch reed of the micro switch 5, and the micro switch 5 is in the on state.

[0045] The housing 1 and the middle plate 3 are buckled up and down by buckles; the middle plate 3 is provided with an inner box 9 and an inner box cover 10, and an installation space for installing a printed circuit board 11 is formed between the inner box 9 and the inner box cover 10; the middle plate 3 is provided with an installation groove for installing an indicator light 18, and the indicator light 18 is connected to the printed circuit board 11, and a through hole 19 for the indicator light to penetrate is provided at a position corresponding to the installation groove on the housing 1. A sealing gasket 16 is provided between the inner box 9 and the inner box cover 10.

[0046] The baffle 4 can be broken by external force; when an alarm is triggered: the baffle 4 is manually broken, the abutment and fixation on the sliding head 6 is released, and the sliding head 6 moves on the middle plate 3 through the extension of the spring 8, and no longer presses the switch reed of the micro switch 5, and the micro switch 5 is in a non-conductive state. The baffle 4 is a glass baffle, and the area corresponding to the baffle 4 on the housing 1 is set as a concave surface.

[0047] The slide cover 2 is slidably arranged on the housing 1; a buckle device 13 is arranged on the housing 1, and the buckle device 13 can fix the slide cover 2 on the housing 1; a key hole 14 is arranged on the housing 1, and the key can drive the buckle device 13 through the key hole 14. When an alarm is triggered: the buckle device 13 is driven by inserting the key into the key hole 14, thereby releasing the abutment and fixation of the slide cover 2 to the baffle 4, and thereby releasing the abutment and fixation of the baffle 4 to the sliding head 6; the sliding head 6 is extended and moved on the middle plate 3 by the spring 8, thereby driving the baffle 4 and the slide cover 2 to move on the housing 1, and no longer compressing the switch reed of the micro switch 5, and the micro switch 5 is in a non-conducting state. When the manual alarm button needs to be readjusted to a normal working state: push the slide cover 2 to slide on the housing 1, so that the baffle 4 abuts against the slide head 6, and the slide head 6 squeezes the switch reed of the micro switch 5 to make it conductive; insert the key into the keyhole 14, and drive the buckle device 13 to fix the slide cover 2. Tracks 12 are provided on both sides of the housing 1, and the slide cover 2 is slidably arranged on the housing 1 through the tracks 12.

[0048] The middle plate 3 is provided with a middle plate groove 7; the lower side of the sliding head 6 is slidably connected with the middle plate groove 7 by a clearance fit; a notch structure 20 is provided on the housing 1 at a position corresponding to the middle plate groove 7. The housing 1 is provided with a mounting hole 15.

[0049] The present embodiment provides a manual alarm button, including a shell, a sliding cover, a middle plate and a glass baffle; the shell and the middle plate are butt-jointed up and down, and both have circular holes on the right front side; the waterproof micro switch is fixed to the middle plate by bolts, the lower side of the sliding head is connected to the groove of the middle plate by a clearance fit, the front side is connected to the protrusion of the front side of the middle plate by a spring, and the left side is in contact with the metal reed of the micro switch; the lower part of the rear half of the middle plate is an inner box, which forms a closed space for placing a printed circuit board with the inner box cover; the glass baffle is placed on the track on the upper side of the middle part of the shell, and the upper side of the glass baffle is in contact with the lower side of the sliding head; there are groove tracks on the left and right sides of the shell, and the sliding cover is pushed forward through the track. When the rear side of the sliding cover contacts the rear side of the shell, a snap device fixes it; the middle intersection of the sliding cover and the rear side of the shell together forms a keyhole, and the key can repeatedly switch from normal to alarm state. The present embodiment has the advantages of simple structure, easy operation, reusability and waterproofness, and has strong practicality.

[0050] Embodiment 2:

[0051] Those skilled in the art may understand this embodiment as a more specific description of Embodiment 1.

[0052] This embodiment provides a manual alarm button, which mainly solves the problems of the prior art, namely, complex structure, high assembly difficulty, cumbersome operation and poor waterproof effect.

[0053] like Figure 1-4 As shown, this embodiment provides a manual alarm button, including a shell 1, a sliding cover 2, a middle plate 3 and a glass baffle 4.

[0054] The housing 1 and the middle plate 3 are buckled up and down by buckles. There is a circular groove on the right front side of the middle plate for placing the indicator light. The wire is connected to the printed circuit board from the back. There is a hole for the circular indicator light at the same position of the housing. The waterproof micro switch 5 is fixed to the middle plate 3 by bolts. There is a square hole on the left side. The wire of the micro switch passes through it and is connected to the printed circuit board. The lower side of the sliding head 6 is connected to the groove 7 of the middle plate by a clearance fit. The front side is connected to the protrusion on the front side of the middle plate through a spring 8, and the left side is in contact with the metal reed of the micro switch; the inner box 9 is below the rear half of the middle plate 3, and it forms a space for placing the printed circuit board 11 with the inner box cover 10; the glass baffle 4 is placed on the track on the upper side of the middle part of the housing, and the upper side of the glass baffle 4 is in contact with the lower side of the sliding head 6; there are groove tracks 12 on the left and right sides of the housing, and the sliding cover 2 is pushed forward through the track. When the rear side of the sliding cover 2 contacts the rear side of the housing 1, a buckle device 13 fixes it; the middle intersection of the sliding cover and the rear side of the housing together forms a keyhole 14, and the key can repeatedly switch from normal to alarm state.

[0055] There are four installation holes 15 on the left and right sides of the housing 1 below the glass baffle 4 to adapt to various installation environments.

[0056] The structure of the housing 1 below the glass baffle 4 is a concave surface, leaving a space between the housing 1 and the glass baffle. When the glass baffle is pressed, the glass baffle will crack and approach the concave surface, so that the sliding head 6 pops out under the action of the spring.

[0057] There is a notch at the contact point between the housing 1 below the glass baffle 4 and the lower side of the sliding head 6, leaving space for the sliding head to pop out.

[0058] There is a sealing gasket 16 between the inner box 9 and the inner box cover 10, and the three wiring ports of the inner box are sealed by glue for waterproofing.

[0059] Working principle: The printed circuit board determines that the micro switch is in normal working state when it is turned on, and in alarm state when it is not turned on. When the manual alarm button is working normally, the sliding cover presses against the glass baffle, and the glass baffle presses against the sliding head, compressing the front spring. At this time, the left side of the sliding head squeezes the micro switch reed, so that the silver point at the front of the reed is triggered by the contact foot, causing the circuit to be turned on and transmitting the signal to the printed circuit board. In the following two cases, the sliding head pops out under the action of the spring, causing the micro switch to be turned off: because the bottom of the glass baffle is a concave surface, when the glass baffle is pressed hard, the middle of the glass baffle breaks and sinks; when the key is inserted, the fixed structure of the sliding cover is unlocked, and the sliding cover retreats under the combined force of the spring and the key.

[0060] The present embodiment has a simple structure and is easy to assemble and disassemble. The spring, sliding head, glass baffle and sliding cover cooperate with each other to realize the switching of the alarm and reset modes of the manual alarm button. The micro switch, sliding head and printed circuit board are all installed in the middle disk. When troubleshooting, only the middle disk needs to be disassembled, and each component is independent. When a fault is found, any component can be replaced separately, which reduces maintenance costs.

[0061] This embodiment is provided with an inner box and a printed circuit board mounting groove, which separates the mechanical and circuit parts, and fixes the printed circuit board in the groove of the inner box. Firstly, it is easy to take out, and secondly, the inner box forms a closed space through the gasket and glue to achieve a waterproof effect.

[0062] This embodiment is easy to operate and supports reuse. During normal use, the alarm can be activated by pressing the glass baffle. During the test phase, the alarm can be activated by inserting a key into the keyhole. The sliding cover can be reset by pushing it forward to a specified position. After resetting, the alarm can be activated again by using the key.

[0063] The invention has a simple structure and is easy to assemble and disassemble, and can realize the switching of the alarm and reset modes by the manual alarm button.

[0064] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0065] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A manual alarm button, characterized in that: include: A housing (1), a sliding cover (2) and a baffle (4), wherein the sliding cover (2) is arranged on the housing (1), and the baffle (4) is arranged on the sliding cover (2); The housing (1) is provided with a middle plate (3), and the middle plate (3) is provided with a micro switch (5), a sliding head (6) and a limiting protrusion (17); The sliding head (6) is arranged adjacent to the micro switch (5), the sliding head (6) is slidably arranged on the middle plate (3), and the sliding head (6) is connected to the limiting protrusion (17) via a spring (8); Under normal working condition: The sliding cover (2) abuts against and fixes the baffle (4), the baffle (4) abuts against and fixes the sliding head (6), the spring (8) is compressed, the sliding head (6) presses the switch reed of the micro switch (5), and the micro switch (5) is in a conducting state.

2. The manual alarm button according to claim 1, characterized in that: The baffle (4) can be broken by external force; When an alarm is raised: The baffle (4) is manually broken to release the abutment and fixation of the sliding head (6), and the sliding head (6) is extended by the spring (8) to move on the middle plate (3), and no longer presses the switch reed of the micro switch (5), and the micro switch (5) is in a non-conducting state.

3. The manual alarm button according to claim 2, characterized in that: The baffle (4) is a glass baffle, and the area on the shell (1) corresponding to the baffle (4) is arranged as a concave surface.

4. The manual alarm button according to claim 1, characterized in that: The sliding cover (2) is slidably arranged on the housing (1); The housing (1) is provided with a buckle device (13), and the buckle device (13) can fix the sliding cover (2) on the housing (1); the housing (1) is provided with a key hole (14), and a key can drive the buckle device (13) through the key hole (14); When an alarm is raised: The key is inserted into the keyhole (14) to drive the buckle device (13), thereby releasing the abutment and fixation of the sliding cover (2), thereby releasing the abutment and fixation of the sliding cover (2) on the baffle (4), and thereby releasing the abutment and fixation of the baffle (4) on the sliding head (6); The sliding head (6) is extended by the spring (8) to move on the middle plate (3), thereby driving the baffle (4) and the sliding cover (2) to move on the housing (1), and no longer compresses the switch reed of the micro switch (5), so that the micro switch (5) is in a non-conducting state.

5. The manual alarm button according to claim 4, characterized in that: When you need to reset the manual alarm button to normal working state: The sliding cover (2) is pushed to slide on the housing (1), so that the baffle (4) abuts against and fixes the sliding head (6), and the sliding head (6) presses the switch reed of the micro switch (5) to put it into a conducting state; The key is inserted into the key hole (14) to drive the buckle device (13) to fix the sliding cover (2).

6. The manual alarm button according to claim 4, characterized in that: Tracks (12) are arranged on both sides of the shell (1), and the sliding cover (2) is slidably arranged on the shell (1) via the tracks (12).

7. The manual alarm button according to claim 1, characterized in that: The shell (1) and the middle plate (3) are buckled together in an up-and-down manner by means of buckles; An inner box (9) and an inner box cover (10) are provided on the middle plate (3), and an installation space for installing a printed circuit board (11) is formed between the inner box (9) and the inner box cover (10); The middle plate (3) is provided with a mounting groove for mounting an indicator light (18), the indicator light (18) is connected to the printed circuit board (11), and the housing (1) is provided with a through hole (19) for allowing the indicator light to penetrate at a position corresponding to the mounting groove.

8. The manual alarm button according to claim 7, characterized in that: A sealing gasket (16) is provided between the inner box (9) and the inner box cover (10).

9. The manual alarm button according to claim 1, characterized in that: The middle plate (3) is provided with a middle plate groove (7); The lower side of the sliding head (6) is slidably connected to the middle plate groove (7) by means of clearance fit; a notch structure (20) is provided on the housing (1) at a position corresponding to the middle plate groove (7).

10. The manual alarm button according to claim 1, characterized in that: The housing (1) is provided with a mounting hole (15).

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